Latin: In Roman law. The majesty, sovereign authority, or supreme prerogative of the state or prince. Also a shorter form of the expression “crimen majestaUs,” or “crimen Icesce majestaUs,” an offense against sovereignty, or against the safety or organic life of the Roman people; i.e., high treason.
MAJESTAS
TheLaw.com Law Dictionary & Black's Law Dictionary 2nd Ed.